The role played by hydroxyls on the surface of CoOx/γ-Al2O3 catalysts of the Fischer-Tropsch synthesis

The activity of cobalt catalysts in the Fischer-Tropsch synthesis was studied. The catalysts were prepared by mixing and calcining at 450- 850°C, active component concentrations were of 5 to 20%. The presence of two active Co centers in Co catalysts on γ-Al 2 O 3 was demonstrated. The absence of a dependence of catalyst activity on the degree of active component dispersity can be caused by the influence of basic hydroxyls on CoO x /γ-Al 2 O 3 catalysts of the Fischer-Tropsch synthesis.